Turning tenths into hundredths

Mathematics · Fractions · ages 9-10

Name ______________________ Date ____________

How many hundredths are in 4/10?
- 14
- 40
- 4
- 400
Which fraction equals 7/10?
- 70/100
- 7/100
- 70/10
- 17/10
What is 1/10 written as a fraction with denominator 100?
- 1/100
- 10/100
- 100/100
5/10 and 50/100 are equal fractions.
Circle one: True False
Sam shaded 50 squares out of 100 and says that is the same as 5/10. Is Sam right?
Circle one: True False
This bar shows 4/10 shaded. Write it as an equivalent fraction with denominator 100.
- 14/100
- 4/100
- 40/100
What is 7/10 + 5/100?
- 12/10
- 75/10
- 75/100
- 12/100
4/10 + 3/100 = ?/100. What number goes on top?
Answer: ______________
Mia says 8/10 + 3/100 = 11/100. What mistake did Mia make?
- She added the numerators without changing 8/10 to hundredths first
- She changed 8/10 to 80/100 correctly
- She forgot to add the numerators
Liv says 5/10 equals 50/100 because multiplying top and bottom by 10 keeps the value. Is Liv right?
Circle one: True False

Answer key

For grown-ups. Fold this page away before handing over the rest.

40 · 40 is right because 4/10 is 40/100.
70/100 · 70/100 is right because multiplying top and bottom of 7/10 by 10 keeps the value.
10/100 · Multiply the top and bottom by 10: 1/10 = 10/100.
True · Splitting each of the 5 tenths into 10 hundredths turns 5/10 into 50/100.
True · Sam is right: 5/10 is 50/100.
40/100 · Each tenth is ten hundredths, so 4/10 = 40/100.
75/100 · 75/100 is right because 7/10 is 70/100, and 70 + 5 = 75.
43 · 4/10 is 40/100, and 40/100 + 3/100 = 43/100.
She added the numerators without changing 8/10 to hundredths first · 8/10 must become 80/100 first. Then 80/100 + 3/100 = 83/100, not 11/100.
True · Liv is right: 5 x 10 = 50 and 10 x 10 = 100, and scaling both keeps the value.